Methanol fuel cells could power robot limbs

Researchers have successfully created
artificial muscles powered by methanol rather than batteries, opening the door to the possibility of fuel-cell powered
artificial limbs that could be used both as prosthetics and in robots. Among the techniques being used is a system that
relies on a combination of methanol, hydrogen and oxygen gases that warm wires, causing them to contract. By regulating
the flow of fuel, the expanding and contracting wire could be used to control the movement of an artificial limb. And
the source of the fuel could come from some surprising places, according to one nanotechnologist: "One day you
could find yourself sitting in a bar next to a humanoid robot, who is taking a shot of vodka to give himself the energy
to go to work," said Ray Baughman, of the University of Texas at Dallas. If that's the case, we assume it won't be
long until we see robots panhandling on street corners, chugging 40s in parking lots and building homemade stills out
of their own spare parts, just to give themselves one more boost of energy.